mcelrath



W. W. MCELRATH, in. HYDROCARBON VAPOHIZER. APPLICATION FILED MMI. 29, 1918.

2 SHEETS-SHEET I.

iM/manda@ 3&3; Mm J I l u y aforucu Patented Nov. 4, 1919.

W. W. MCELRATH, In. HYDROCARBON VAPOHIZEH.

APPucATloN FILED MAR.'29.1913.

Patented Nov. 4, 1919 z SHEETs-sHEET 2.

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H, 03F RA'DFGRD, VIRGINIEL,

YIR GA'EIBQN- VAPORIZER.

Speeica tion of Letters Patent.

Patented Nov. 4i, 1919.

ippneaum and Maren e9, i918. semi no. 225,419.

To all wle/0m it may concer/n.7

Be it .known that l, 'WILLIAM W.- Mo- ELRATH, Jr.7 a citizen of the United States7 and a resident of East Radford, in the county of Montgomery and State of Yin ginie, have invented .new and useful lin- ;'novenients in Hydrocarbon-Vaporizers, of which the following is a specification.

My invention relates to improvements in hydrocarbon vaporizers for preheating gaseous fuels used particularly in connection with internal combustion engines.

An important object of the-invention is to provide in a device of the above named character a means which will inake possible the using of heavy hydro-Carbon liquids which are commonly employed as a fuel.

A further object of the invention is to provide in a device of the above mentioned character a nieanswhereby the gases enter- .ing the explosion Chamber ofy the internal.

Combustion engine inay be maintained at a uniform temperature.

A further object of the invention is to provide in a devise oi' the labove mentioned character nieans by which the liquid in. its course of travel into thoeoinbustion ehain ber ot' the interi'ial combustion engine will be if'aporized to a point oi complete density Within a tubular coil. and manifold before it enters the combustion chamber 'of an in ternal combustion engine for explosion.

A 'further object of the invention is to provide a device oi? the above mentioned character, wiioh is siniple in construction. inexpensive to manufacture, durable, and reliable in operation. .f

Other objects and a-lrantages the invention Will be appuient to those skilled in the art during the Course oi the following description taken i n connection with the ao- Coinpanying' dravvin in the aocoiniiauying drawings, forming a part of this specification and in which like numerals are employed to. designate like parts throughout the saine,

Figure l. is a side elevation of a device embodying the preferred torni of my luren Fig. Q- is vertical transverse section view of Fig. 1,

Fig. 3 is a side eleif'ation oi; a thermostat showing the saine connected in (iii-enit with a resistance unit and. a source oi; electrical energy,

is a central vertical transverse seo* tion view of a core,

Fig. 5 is a top plan View of F ig. 1l,

6 is a side elevation of a heating resistanee unit,

Fig. 7 is a side elevation of a device embodying the modied forni oi' my invention,

and,

Fig, 8 is a vertical transverse section view the saine.

In the drawings, attention being called to Figs. l to `6 inclusive wherein is shown a preferred 'form of my invention, the numeral l() indicates an internal combustion engine having an intake manifold l1 and an eX- iaust manifold 12 connected thereto by any suitable means. To the exhaust manifold l2!` there is connected a deiieetor 13 coniinunieating with the interior of the exhaust manifold l2 and provided With a iiange 14 to which is connected a resistance unit bowl l5 by means oi bolts or the like l@ passed through a ange i7 carried thereby. This bowl is provided. with a nipple l5 adapted .for connection to a suitable pipe, not sho-Wn,

pipe being preferably of the conventional type used in conveying exhaust gases from an internal combustion engine to. a desired dis-tance or remote point. Between the llanges 14. and i7 there is eoniined a plate 18 carrying a hollow core 19 which is provided with a spiral flange 20 a groove 2l extending throughout the length of the saine. 'The plate 18 is provided centrally with an opening 22 registering with the opening of the core li). The plate 1S is further provided. With a plurality of arouate-shaped openings s3 which connect the interior oi", the bowl with the interior of the defleetor '18. is shown in Fig. 2, the (fore i9 extends downwardly into the bowl i5 substantially throughout the length oi the saine. To 'the bottom or' the howl l5 there ifs-connected a carburetor oowl 24% by means of a suitable bracket This earbureter bowl maintained in communication with. a eoil 1tube 26 by means of a suitable 'pipe 27. "he coil tube 26 is carried thin the groove 2l of the iiange 20 and .has its upper kand extending upwardly through an opening 28 provided by the plate has its through. the deleetor 13 andis connected. to 30 earried by the as shown at 29 an an." mixing chamber intake manifold il as upper end extending upwardlyv vclearly shown in lligs. l and The nir inixine clnunliei 530 is provided with. e slee 3l the Wililth or" which is adapted to he veiieil by means of e hand-wheel for adjusting or un vying the supply of nir ifi-oni the exterior to the interior of the ehzunher oft The cliznnlier 3G is maintained in coni* nuinicution with the intake nnu'iitolfl ll hy ineens of u, 'passage 33 cledrly shown. in lllithin the core 19 there is tittefl u. snit- Y51h-le electrical resistance unit indicated ns e Whole by tl numeral This electrical resistance unit is retained within the core 19 by ineens oi a screw plug 3l arranged, Within the core and having sci eW-thre: nl engagement with the saine es shown :ist und comprises i coil of resistance Wire einheddecl in si suitable refractory friet-eil@l 3G. The coil of Wire 35 has its ends termi-- neting shown at 3? :incl 38, the encl having suitable connection. with a conductor While the enel 38 is connected by any suitehle ineens/to i conductor 40 which in tnrn is gi'cinided ns dleg'ininniaticelly shown. :at Zll in ign Upon the cleilector l2 there imposed n casing' the .interior oi1 which seperated frein the interior ci flee/tor 13 by means of Well Lf ithin the casing thei'e is disposed e, tlieii'inostet which comprises en urne l5 con'ipeseii i two strips of materiel (i6 having different coeilicients of expansion. @ne enel ci the thermostat erm is connected to e, suitable insulation if? noy Ineens of screws or the like es shown While the free enel of the erin l5 is arranged for Contact with n thninh screw 48 having screw-thread engagement with the casingf 42 as shown at 49. A VWitch is interposed Within the conductor "nl" switch may he located et any convenient nn remote. point to the thermostat si. ble source electrical enc is conu *i neet/eri to the conductor una the source of electrical energy is in turn coiniectl ,l with e conductor 52 having connection with. the thermostat Ll5 las shown at 53.

ln considering Figs. 71 and 8 wherein is shown :L modiliecl 'form of my invention, the; .numeral 54 indicates an exhaust pipe having @arranged therein an intake manifold 'l'his intake manifold is connected to an air mixing chamber 56 by ineens of n pas hy the numeral and hereinheiiore ilesci'iheclin connection with the form-,of my invention as shown ein@ S inclusi ,it 'wi' that the lippe? end or 'i ci' bein@Y passed throng; well oi? the rleie is cenr ci 'l :il:

linnn 'l'.l stance unitsl, :L sini ig ot course; that the lherinostnt erm is contacting wit i tinx thumb screw as clearly shown in Fig. lll'hen the electrical energy is thus supplied to the iesis ce unit 3lheut will l, due to the re" tence formed lijf t This heut .ll be conducted 'i l@ und into the coil npc L15 whereupon the incl supplied -hf il'i'oni the ce hureter howl 241 will he heu. eil mil volait iizeil, the vapor pissing upwardly through the pipe und inte the nir mii-:ing clnnnheif 3l) whe eupon nii' is drawn into the chen'ihei' unil, mixed with the if `por when the engine is hronght into opei fition. After the engine has been started the cherge, subsequent to its ignition 'within the cylinders of the eng ne is directed into the exhaust' meniiolfl in the usuel manner in is conveyed thereiron'i into the howl passing ,around the tube 236, the exhaust; ges-es being: trimsinittefl from the bowl l5 through the nipl l5. Heut, from the exhaust trevis thi-ong howl is transmitme coil 2G ein' l throughout howl l5. lil/'hen the mwl hss become heat-eri suiliciently the mini fl oilE the thermostat il will nieve out oi engagement with the liliuinl) screw whereupon the electrical, circuit supplying electricul energy to the electricel resistance unit 34- is hrolzen. Should the teuiperetm'e of the bowl igor any refison diminish sulliciently te permit the tlierinostzit anni to come into Contact with. the tlnunh screw Il# the circuit7 assuming that the switch wie; closefl, will he established and heet will lic/generatori by' the heut 'icvsistan c unit 3l :is hci'einhe'lore rlesciihecl lo heul; fuel in its course oi'i' travel through the pipe 6 to maintain :i constant elliciency in the wpcrstion of the'engine with which my lm ice is particularly adapted to be used. ln wnsifleringg the operation of the modil eil t1u ol my invention es shown in Fi it neefl only he sziifl that the fuel into the i'nixing chamber 56 ceri-ie T o. 'il e exhaust imuiii'leld, and is there heini;V cronici/fell lo designate 

